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Energy harvesting can enable a reconfigurable intelligent surface (RIS) to self-sustain its operations without relying on external power sources. In this paper, we consider the problem of energy harvesting for RISs in the absence of…

Signal Processing · Electrical Eng. & Systems 2023-11-07 Morteza Tavana , Meysam Masoudi , Emil Björnson

The possibility to control the magnetic properties of a material with an electric field at room temperature is highly desirable for modern applications. Moreover, a coupling between magnetic and electric orders within a single material…

In this paper, we examine the maximization of energy efficiency (EE) in next-generation multi-user MIMO-OFDM networks that evolve dynamically over time - e.g. due to user mobility, fluctuations in the wireless medium, modulations in the…

Information Theory · Computer Science 2015-04-16 Panayotis Mertikopoulos , E. Veronica Belmega

Free-standing, interconnected metallic nanowire networks with density as low as 40 mg/cm^{3} have been achieved over cm-scale areas, using electrodeposition into polycarbonate membranes that have been ion-tracked at multiple angles.…

An IoT (Internet of things) system supports a massive number of IoT devices wirelessly. We show how to use Cell-Free Massive MIMO (multiple-input and multiple-output) to provide a scalable and energy efficient IoT system. We employ optimal…

Systems and Control · Electrical Eng. & Systems 2020-11-17 Hangsong Yan , Alexei Ashikhmin , Hong Yang

This paper introduces EcoPull, a sustainable Internet of Things (IoT) framework empowered by tiny machine learning (TinyML) models for fetching images from wireless visual sensor networks. Two types of learnable TinyML models are installed…

Networking and Internet Architecture · Computer Science 2024-05-02 Mathias Thorsager , Victor Croisfelt , Junya Shiraishi , Petar Popovski

We discuss a model that considers the bulk composite as a homogeneous medium with piezoelectric and magnetostrictive subsystems. We solve combined elastostatic, electrostatic and magnetostatic equations to obtain effective composite…

Materials Science · Physics 2007-05-23 V. M. Petrov , M. I. Bichurin V. M. Laletin , N. N. Paddubnaya , G. Srinivasan

The Internet of Things (IoT) envisions billions of sensors deployed around us and connected to the Internet, where the mobile crowd sensing technologies are widely used to collect data in different contexts of the IoT paradigm. Due to the…

Networking and Internet Architecture · Computer Science 2016-11-18 Charith Perera , Dumidu Talagala , Chi Harold Liu , Julio C. Estrella

The battery-less Internet of Things (IoT) devices are a key element in the sustainable green initiative for the next-generation wireless networks. These battery-free devices use the ambient energy, harvested from the environment. The energy…

Networking and Internet Architecture · Computer Science 2023-11-03 Chetna Singhal , Subhrajit Barick , Rishabh Sonkar

A spurt of progress in wireless power transfer (WPT) and mobile edge computing (MEC) provides a promising approach for Industrial Internet of Things (IIoT) to enhance the quality and productivity of manufacturing. Scheduling in such a…

Signal Processing · Electrical Eng. & Systems 2019-09-06 Hao Wu , Xinchen Lyu , Hui Tian

We describe a new type of magnetic field sensor which is termed an Electro-Mechanical Resonant Sensor (EMRS). The key part of this sensor is a small conductive elastic element with low damping rate and therefore a high Q fundamental mode of…

Instrumentation and Detectors · Physics 2014-11-18 Alexander B. Temnykh , Richard V. E. Lovelace

Internet of Things (IoT) devices are typically powered by small-sized batteries with limited energy storage capacity, requiring regular replacement or recharging. To reduce costs and maintain connectivity in IoT networks, energy harvesting…

Networking and Internet Architecture · Computer Science 2024-08-19 Wenwen Xie , Geng Sun , Jiahui Li , Jiacheng Wang , Hongyang Du , Dusit Niyato , Octavia A. Dobre

A new era in wireless sensor network technology has been ushered in through the introduction of multimedia sensor networks, which has a major bottleneck in the form of network congestion. Congestion occurs when resources are in high demand…

Networking and Internet Architecture · Computer Science 2013-12-17 Srinjoy Ganguly , Arpita Chakraborty , Mrinal Kanti Naskar

This paper reports the first demonstration of a magnet-free, high performance microelectromechanical system (MEMS) based circulator. An innovative circuit based on the commutation of MEMS resonators with high quality (Q) factor using RF…

Magnetoencephalography (MEG) is an important noninvasive, nonhazardous technology for functional brain mapping, measuring the magnetic fields due to the intracellular neuronal current flow in the brain. However, the inherent level of noise…

Other Computer Science · Computer Science 2015-03-24 A. Ukil

The problems of energy harvesting in wireless com- munication systems have recently drawn much attention. In this paper, we focus on the investigation of energy harvesting maximization (EHM) in the important secrecy multi-input multi-…

Information Theory · Computer Science 2016-01-15 Wei Wu , Xueqi Zhang , Baoyun Wang

Bulk magnetite (Fe3O4), the loadstone used in magnetic compasses, has been known to exhibit magnetoelectric (ME) properties below ~10 K; however, corresponding ME effects in Fe3O4 nanoparticles have been enigmatic. We investigate…

Strongly Correlated Electrons · Physics 2017-09-04 Kyongjun Yoo , Byung-Gu Jeon , Sae Hwan Chun , Deepak Rajaram Patil , Yong-jun Lim , Seung-hyun Noh , Jihyo Gil , Jinwoo Cheon , Kee Hoon Kim

LoRa networks have been deployed all over the world and are a major enabling wireless technology for the Internet of Things (IoT). Massive connectivity applications such as smart metering, agriculture, and supply chain \& logistics are most…

Networking and Internet Architecture · Computer Science 2021-02-04 Orestis Georgiou , Constantinos Psomas , Eleni Demarchou , Ioannis Krikidis

This study investigates the temperature-dependent quasi-static magnetoelectric (ME) response of electrically poled lead-free Na$_{0.4}$K$_{0.1}$Bi$_{0.5}$TiO$_3$-NiFe$_2$O$_4$ (NKBT-NFO) laminated composites. The aim is to understand the…

In this paper, we consider a multiuser massive single-input multiple-output (SIMO) enabled Industrial Internet of Things (IIoT) communication system. To reduce the latency and overhead caused by channel estimation, we assume that only the…

Information Theory · Computer Science 2019-03-06 Zheng Dong , He Chen , Jian-Kang Zhang , Branka Vucetic
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